Fix build and code structure improvements. New but essential UI functionality. CI improvements. Documentation improvements. AI module improvements.

src/Graph/__Tests/StellaOps.Graph.Api.Tests/QueryServiceTests.cs

@@ -1,4 +1,4 @@
-using System.Collections.Generic;
+using System.Collections.Generic;
 using System.Text.Json;
 using Microsoft.Extensions.Caching.Memory;
 using StellaOps.Graph.Api.Contracts;
@@ -92,7 +92,6 @@ public class QueryServiceTests
         {
             if (!line.Contains("\"type\":\"node\"")) continue;
             using var doc = JsonDocument.Parse(line);
-using StellaOps.TestKit;
             var data = doc.RootElement.GetProperty("data");
             if (data.TryGetProperty("overlays", out var overlaysElement) && overlaysElement.ValueKind == JsonValueKind.Object)
             {